Tag: Powder Coating Test

Powder Coating Test Methods , Powder Coating Test Posts

 

Powder Coating Coverage Calculation

powder coating coverage checking

Powder Coating Coverage is very important to factor in the actual transfer efficiency that you will achieve. Estimators often find themselves scrambling to purchase more powder by not factoring in the correct transfer efficiency percentage.To evaluate the actual transfer efficiency of powder coating is very important. The following coverage table is helpful in estimating the amount of powder needed to coat a given amount of surface area. Theoretical coverage formulation Please note that the coverage of powder coating in theRead More …

Necessary laboratory equipment for testing powder coating in application

LABORATORY EQUIPMENT Equipment necessary for testing the pre-treatment chemicals, rinsing water and final results Tests of pre-treatment chemicals to be performed according to suppliers’ instructions Conductivity measurement gauge for evaluation of final rinse Temperature recorder Coating weight equipment, DIN 50939 or equal Equipment necessary for testing the powder coating Film thickness gauge suitable for use on aluminum (e.g. ISO 2360, DIN 50984) Cross hatch equipment, DIN-EN ISO 2409 – 2mm Bending test equipment, DIN-EN ISO 1519 Indentation test equipment, DIN-ENRead More …

Testing Methods for Powder Coating Application Process

TESTING METHODS FOR POWDER COATING

TESTING METHODS FOR POWDER COATING Testing methods are designed for two purposes: 1. Performance reliability ; 2. Quality control (1)  GLOSS TEST (ASTM D523) Test coated flat panel with Gardener 60 degree meter.  Coating shall not vary  + or – 5% from data sheet requirements on each material supplied. (2)  BENDING TEST (ASTM D522) Coating on .036 inch thick phosphated steel panel shall withstand 180 degree bend over 1/4″ mandrel.  No crazing or loss of adhesion and finish at the bend beRead More …

Quality Control of Powder Coating

Paint over powder coat - How to paint over powder coat

Quality Control Of Powder Coating Quality control in the finishing industry requires attention to more than just coating. In fact, the majority of problems occur for reasons other than coating faults. To assure quality where coating may be a factor, statistical process control (SPC) can be a useful tool. SPC SPC involves measuring the powder coating process using statistical methods and improving it to reduce variation at desired process levels. SPC can also help determine the difference between typical variationRead More …

How To Evaluate Coating Adhesion-Tape Test

Tape Test

By far the most prevalent test for evaluating coating adhesion is the tape-and-peel test, which has been used since the 1930’s. In its simplest version a piece of adhesive tape is pressed against the paint film and the resistance to and degree of film removal observed when the tape is pulled off. Since an intact film with appreciable adhesion is frequently not removed at all, the severity of the test is usually enhanced by cutting into the film a figureRead More …

Impact Testing Process for Qualicoat Standard

powder coating impact test equipment2

For Powder Poatings Only. The impact shall be carried out on the reverse side, whereas the results shall be assessed on the coated side. -Class 1 powder coatings (one- and two-coat), energy: 2.5 Nm: EN ISO 6272- 2 (indenter diameter: 15.9 mm) -Two-coat PVDF powder coatings, energy: 1.5 Nm: EN ISO 6272-1 or EN ISO 6272-2 / ASTM D 2794 (indenter diameter: 15.9 mm) -Class 2 and 3 powder coatings, energy: 2.5 Nm: EN ISO 6272-1 or EN ISO 6272-2Read More …

ASTM D3359-02-TEST METHOD A-X-CUT TAPE TEST

ASTM D3359-02-TEST METHOD A-X-CUT TAPE TEST

ASTM D3359-02-TEST METHOD A-X-CUT TAPE TEST 5. Apparatus and Materials 5.1 Cutting Tool—Sharp razor blade, scalpel, knife or other cutting devices. It is of particular importance that the cutting edges be in good condition. 5.2 Cutting Guide—Steel or other hard metal straightedge to ensure straight cuts. 5.3 Tape—25-mm (1.0-in.) wide semitransparent pressure sensitive tape7 with an adhesion strength agreed upon by the supplier and the user is needed. Because of the variability in adhesion strength from batch-to-batch and with time,Read More …

Testing of Powder Coatings

testing of powder coatings

Testing of Powder Coatings Surface Characteristics Test Method Procedure (s) Primary Test Equipment Surface Characteristics     Smoothness PCI # 20 Smoothness Standards Gloss ASTM D523 Glossmeter Color ASTM D2244 Colorimeter Distinctness of Image   Visual Observations Contrast Ratio PCI #3 Special Substrates,   ASTM D2805 Reflectance Instruments Physical Characteristics Physical Test Primary Test Equipment Characteristics Procedure (s)   Film Thickness ASTM D 1186 Magnetic Film Thick Gauge,   ASTM D1400 Eddy Current Induce Gauge Impact ASTM D2794 Impact Tester Flexibility ASTM D522 Conical or Cylindrical Mandrel Adhesion ASTM 2197 Balanced-Beam Scrape-Adhesion,   ASTM D3359 Cross Hatch Cutting Device and Tape Hardness ASTM D3363 Calibrated Drawing Leads or Pencils Abrasion Resistance ASTM D4060 Taber Abrader and Abrasive Wheels   ASTM D968   Edge Coverage ASTM 296 Standard Substrate and Micrometer Chip Resistance ASTM D3170 Gravelometer   Test Method Procedure(s) Primary Test Equipment Environmental Characteristics     Solvent Resistance   MEK or other Stain ResistanceRead More …

Bending Test – Qualicoat Testing Process

powder coating test

All organic coatings except class 2 and 3 powder coatings: EN ISO 1519 Class 2 and 3 powder coatings: EN ISO 1519 followed by a tape pull adhesion test as specified below: Apply an adhesive tape to the significant surface of the test panel following the mechanical deformation. Cover the area by pressing down firmly against the coating to eliminate voids or air pockets. Pull the tape off sharply at right angles to the plane of the panel after 1Read More …

QUALICOAT Standard for Natural Weathering Test

Natural Weathering Test

Exposure in Florida according to ISO 2810 , The natural weathering test should start in April. Class 1 organic coatings Samples shall be exposed facing 5° south to the horizontal and facing toward the equator for 1 year. 4 test panels per colour shade are required (3 for weathering and 1 reference panel) Class 2 organic coatings Samples shall be exposed facing 5° south for 3 years with an annual evaluation. 10 test panels per colour shade are required (3 per yearRead More …

Cross Cut Test ISO 2409 Renewed

Cross Cut Test

The ISO 2409 Cross Cut Test has been recently updated by ISO. The new version that is now valid has several changes compared to the old one: Knives The new standard includes an enhanced description of the well-known knives.The knives need to have a trailing edge, because otherwise it skates instead of scratches. Knives that do not have this trailing edge are not according to the standard. Tape The new version of the standard has a huge change compared toRead More …

Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02

ASTM D3359-02

Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02 7. Procedure 7.1 Select an area free of blemishes and minor surface imperfections. For tests in the field, ensure that the surface is clean and dry. Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating. 7.1.1 For specimens which have been immersed: After immersion, clean and wipe the surface with an appropriate solvent which will not harm the integrity of the coating. Then dry or prepareRead More …

Standard Test Methods for Measuring Adhesion by Tape Test

Test Methods for Measuring Adhesion

Test Methods for Measuring Adhesion This standard is issued under the fixed designation D 3359; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1. Scope 1.1 These test methods cover procedures for assessing the adhesion of coating films to metallic substrates byRead More …

TEST METHOD-CROSS-CUT TAPE TEST-ASTM D3359-02

ASTM D3359-02

TEST METHOD-CROSS-CUT TAPE TEST-ASTM D3359-02 10. Apparatus and Materials 10.1 Cutting Tool9—Sharp razor blade, scalpel, knife or other cutting device having a cutting edge angle between 15 and 30° that will make either a single cut or several cuts at once. It is of particular importance that the cutting edge or edges be in good condition. 10.2 Cutting Guide—If cuts are made manually (as opposed to a mechanical apparatus) a steel or other hard metal straightedge or template to ensureRead More …